Bank of Canada upset at Star Trek fans for increasing value of its currency

Canada's five dollar bill sports an image of the country's seventh prime minister, Wilfrid Laurier. It just so happens that Laurier looks a bit like a hairless Spock, so Star Trek fans have been having a little fun:

Bank of Canada spokeswoman Josianne Menard acknowledges this kind of doodling isn't illegal:

However, there are important reasons why it should not be done. Writing on a bank note may interfere with the security features and reduces its lifespan. Markings on a note may also prevent it from being accepted in a transaction. Furthermore, the Bank of Canada feels that writing and markings on bank notes are inappropriate as they are a symbol of our country and a source of national pride.

Seems to me Ms. Menard should be thanking Trekkers for increasing the value of Canadian currency.